Since its 1992 inception, UNKLE has been the primary musical outlet of James Lavelle. The co-founder of Mo' Wax, one of the most consequential English independent labels of the '90s, Lavelle has been joined by a carousel of primary collaborators and an ever-changing array of guest contributors who have helped him indulge in styles ranging from sample-based hip-hop to downcast stoner rock. The Top Five U.K. hit Psyence Fiction (1998), the debut UNKLE album, was shaped by temporary partner DJ Shadow, but its diversions pointed the way toward the progressively band-oriented album...